Olga Lobacheva, Natalia Dzhevaga. "COMPARATIVE CHARACTERISTIC REMOVAL OF HYDROXOCOMPLEXES HOLMIUM BY ION FLOTATION AND EXTRACTION." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation, 2017, pp. 219-226. https://doi.org/10.5593/sgem2017/51/s20.029